国家/地区 中国（4）
IPC部 C（2） H（2）
IPC大类 H01（2）
IPC小类
IPC
发明人 MAO M（4）
公开年 2013（4）
申请年 2013（3） 
专利权人 UNIV BEIJING.（2） UNIV CENT SO.（2）

Preparing graphene material using ball milling comprises e.g. ball milling graphite carbon, alkylated six-membered aromatic ring or fused ring polyether nonionic surfactant and deionized water in ball mill, and adding into deionized water.

LIU H, MAO M

Preparation of graphene material by taking graphite electrode, using electrolytic solution containing N-methylpyrrolidone hydrosulfate and 1-methylimidazole hydrogen sulfate, grinding, centrifuging, and carrying out sedimentation.

LIU H, MAO M

Transparent electrode graphene film preparing method, involves arranging p-type and n-type gallium nitride layers on LED epitaxial wafer, and removing impurities on graphene film and indium tin oxide thin layer by photo-etching process.

SUN J, MAO M, XU K, XU C, DENG J, ZHENG L, XIE Y, ZHU Y

High power surface emitting laser with graphene film current extension layer, has lower electrode, N-type substrate, N-type and P-type distributed Bragg reflectors, graphite film current extension layer, and upper electrode.

LIU J, XU K, MAO M, SUN J, XIE Y, DENG J, ZHU Y, XU C